Backwaters is one of the major tourism product of Kerala, being 
unique to the state. Traditionally used as one of the main 
transportation alleys, today backwaters offer a rejuvenating experience 
for tourists visiting Kerala. 
The backwaters can be explored by hiring a boat for one or 
several days. If you go for more than a day, the boat usually comes with
 a navigator and a cook, which provide you with various facilities when 
exploring the backwaters.
The most beautiful and accessible part of the back waters is the Astamudi Lake located in district in Kollam.
 This is one of the largest fresh-water lake in India, with numerous 
navigable canals and rivers interconnecting almost all regions of south 
Kerala. The Astamudi is also home of several endangered marine species 
with rich bio-diversity. This lake is world-renowned for its natural 
beauty and large expanse of water, sandwiched between towns of Kollam. 
 This is the most visited tourist area in South India and enthralls 
visitors all over world. Houseboat tourism, made this backwaters 
popular, where tourists can stay overnight in luxurious houseboats, 
enjoying natural beauty and wind off their stress
Next is  Vembanad backwater stretch located in  districts of Ernakulam, Alapuzha & Kottayam area.The Cochin coast is dotted with numerous islands interconnected by
 ferries and bridges, adorning the Queen of the Arabian Sea like a 
necklace of pearls. The islands break the waves from the sea, thus 
ensuring that the back waters are calm and navigable. Among the islands,
 Wellingdon Island deserves special mention as it houses the Port of 
Cochin and the largest Naval presence in India: the Southern Naval 
Command

